This deep base ring is used to mount your dome camera on so that you can easily conceal the camera connections behind the camera. Which is great for outdoor use and negates the need for a junction box.
Compatible with MaxxOne MDH-C101F-DW, MDV-C11F-DW, MDV-700-FDW, MDV-700-EFDW eyeball dome cameras and various other 94mm diameter eyeball dome cameras.